Question

Rolling is a forming process in which thickness of the metal plate is decreased by increasing its length.

(a) True

(b) False

This question was posed to me in an international level competition.

The origin of the question is Metal Forming Processes topic in chapter Forming Process of Casting-Forming-Welding II

Answer 1

Right option is (a) True

The explanation is: Rolling is a metal forming process in which the metal plate is squeezed between the two hard rollers. In the operation, the thickness is decreased and the length is increased as the volume of the metal is conserved. This method is mainly used for the production of thin metal plates which can be done by performing hot rolling or cold rolling, depending on the required mechanical properties.